Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
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- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Start the engine.
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P0365 indicated? YES- Go to step 5 . NO- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at CKP sensor B and the ECM/PCM.
- Turn the ignition switch OFF.
- Disconnect CMP sensor B 3P connector.
- Turn the ignition switch ON (II).
- Measure voltage between CMP sensor B 3P connector terminal No. 3 and body ground. Is there battery voltage? YES- Go to step 9 . NO- Repair open in the wire between CMP sensor B and PGM-FI main relay 1 (FI MAIN), then go to step 18 .
- Measure voltage between CMP sensor B 3P connector terminal No. 1 and body ground. Is there about 5 V? YES- Go to step 10 . NO- Go to step 11 .
- Measure voltage between CMP sensor B 3P connector terminals No. 2 and No. 3. Is there battery voltage? YES- Go to step 16 . NO- Repair open in the wire between CMP sensor B and G101, then go to step 18 .
- Measure voltage between ECM/PCM connector terminal A6 and body ground. Is there about 5 V? YES- Repair open in the wire between the ECM/PCM (A6) and CMP sensor B, then go to step 18 . NO- Go to step 12 .
- Turn the ignition switch OFF.
- Jump the SCS line with the HDS.
- Disconnect ECM/PCM connector A (31P).
- Check for continuity between ECM/PCM connector terminal A6 and body ground. Is there continuity? YES- Repair short in the wire between the ECM/PCM (A6) and CMP sensor B, then go to step 18 . NO- Go to step 24 .
- Turn the ignition switch OFF.
- Replace CMP sensor B (see «ECT SENSOR REPLACEMENT»(ref-220570-S34870321162006022000000) ).
- Reconnect all connectors.
- Turn the ignition switch ON (II).
- Reset the ECM/PCM with the HDS.
- Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-220572-S08440202922006022000000) ).
- Start the engine.
- Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES- If DTC P0365 is indicated, check for poor connections or loose terminals at CMP sensor B and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting . NO- Troubleshooting is complete.
- Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see «ECM/PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-220569-S23624043112006022000000) ).
- Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES- If DTC P0365 is indicated, check for poor connections or loose terminals at CMP sensor B and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting . NO- If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see «MAP SENSOR REPLACEMENT»(ref-220570-S17955277902006022000000) ).